블록체인 및 실무응용 1
- Node JS
npm -v
npm init
npm install web3
node example.js
- Infura
- https://infura.io/
web3js-project
- Endpoints > ROPSTEN > wss
- Remix Solidity
- Compile > Deploy
- Deployed Contracts > Faucet
- Smart contract를 수정하면 새로 배포해야 한다.
- Keccak-256
- Event hash signature
- https://emn178.github.io/online-tools/keccak_256.html
- GitHub